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Finding the Fourth Proportional to 255,756.84, 352,945.26 and 148,390.44

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Solution

The fourth proportional to 255,756.84, 352,945.26 and 148,390.44 is: 204,779.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,756.84 : 352,945.26 = 148,390.44 : x
  2. Step 2: Convert to fraction form
    255,756.84/352,945.26 = 148,390.44/x
  3. Step 3: Cross multiply
    255,756.84x = 352,945.26 × 148,390.44
  4. Step 4: Simplify right side
    255,756.84x = 52,373,702,427.31
  5. Step 5: Solve for x
    x = 52,373,702,427.31/255,756.84
  6. Step 6: Final answer
    x = 204,779.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.